I don't see any changes to routing here when the upload goes down, IPv4 and IPv6 stays the same route... 

Here's my data from yesterday till now..

Interesting upload dip at 12:30am-1:25am... Taking a sample every 2 mins, this is the akl1.linetest.nz endpoint

traceroute to akl1.linetest.nz (101.98.9.197), 30 hops max, 60 byte packets
 1  x.x.x.x.1  1.093 ms  1.247 ms  0.958 ms
 2  * * *
 3  101.98.5.117  11.759 ms  11.451 ms  11.129 ms
 4  101.98.9.197  10.665 ms  10.356 ms  11.373 ms

traceroute to akl1.linetest.nz (2404:4408:5:2910::1), 30 hops max, 80 byte packets
 1  xxxx::1 1.017 ms  0.852 ms  0.893 ms
 2  2400:4800::30  5.582 ms  5.525 ms  5.474 ms
 3  2404:4408:1::125  13.889 ms  13.840 ms  13.815 ms
 4  2404:4408:5:2910::1  13.765 ms  13.713 ms  13.658 ms